The Effect of Spatial Distribution of Basement Detachment on Deformation in a Fold and Thrust Belt: An Analogue Modeling Approach an Example of West Kunlun Fold-and-Thrust Belt
详细信息
- 责任者：Xie Huiwen (Tarim Oilfield Company ; PetroChina ; Korla 841000 ; China) ; Wang Chunyang
- 刊名：Geological Journal of China Universities
- 出版年：2012
- 卷期：18(4)
- 关键词：褶皱冲断带 ; fold and thrust belts ; 基底构造 ; basement tectonics ; 昆仑山 ; Kunlun Mountains
- 页码：p.701-710
- 图表：4 illus., 1 table, 28 refs.
- 分类号：0300
- issnNo：ISSN1006-7493
- isbnNo：CN32-1440/P
摘要
This paper used an analogue modeling method to study the effect of spatial distribution of basement detachment on deformation in a fold and thrust belt. Based on the spatial distribution of Cambrian salt in West Kunlun fold and thrust belts southwest of Tarim Basin, the authors designed two experiment models. The results show that the spatial distribution of basement detachment plays a very important role in controlling the deformation styles and deformation front of a fold and thrust belt. In the processes of experiments, the deformation front of Sugaite transmitted much faster and over a longer distance toward foreland than Kedong area, thus the thrust front favors a Z-shaped transition.